Running Guide for People in Their 50s to 70s. - Title: Retirement Running - Author: Shuichi Nakano James - Target Age: 50s to 70s - Content: Basic knowledge of running and training methods - Price: 1800 yen - Theme: Health and Fitness Thank you for viewing. I read it in one day after purchasing it, and the condition is almost new, but it is a used item. Please purchase with your understanding.